February 1, 2008

February 1, 2008 - low X with low Y Negative relationship:...

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February 1 Outline I. Overview of Chapter 6 and Chapter 7 II. Scatterplot A. Linear relationship B. Curvilinear relationship III. Types of relationship A. Positive B. Negative C. Perfect 4. Imperfect IV. The concept of correlation A. Correlation coefficient B. Use of scatterplot V. Scatterplot on SPSS
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Scatterplot: a graph of paired X and Y values Linear relationship: a relationship between two variables that can most accurately be represented by a straight line in the scatterplot Curvilinear relationship: a relationship between two variables that can most accurately be represented by a curved line in the scatterplot Positive relationship: a direct relationship between two variables; high X is associated with high Y and
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Unformatted text preview: low X with low Y Negative relationship: an inverse relationship between two variables; high X is associated with low Y and low X is associated with high Y Perfect relationship: a relationship exists and all of the points in the scatterplot fall on a line Imperfect relationship: a relationship exists and all of the points in the scatterplot do not fall on a line Correlation: concept referring to the relationship between two variables, how they are co-related Correlation coefficient: a value that expresses quantitatively the magnitude and direction of the relationship between two variables...
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February 1, 2008 - low X with low Y Negative relationship:...

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